What is Trezor Bridge?
Trezor Bridge is a small, trusted helper application that runs locally on your computer and enables secure communication between browser-based services, the Trezor Suite, and your Trezor hardware wallet. It acts as a secure translator between web apps and the USB interface so you can sign transactions and manage accounts without exposing secret keys.
Why Trezor Bridge matters
Many browsers have restricted direct USB access; Bridge ensures consistent, secure connectivity across Windows, macOS, and Linux. It’s maintained by the Trezor team and designed to listen only on localhost to reduce exposure.
Step-by-step install & verify
Follow these high-level steps to get Trezor Bridge working:
- Go to the official page: trezor.io/bridge.
- Download the installer for your OS and run it.
- Restart your browser (or the computer) so web apps detect Bridge.
- Connect your Trezor and confirm the device prompts when asked.
Security checklist
- Download only from
trezor.io. - Verify installer checksums where available before running.
- Confirm firmware prompts on the device itself — never enter seed words online.
- Keep Bridge and Trezor Suite updated to the latest versions.
Troubleshooting Trezor Bridge
Common issues include detection failures and browser permission prompts. Try a different USB cable or port, reinstall Bridge, restart your computer, or use the Trezor Suite desktop version. If a problem persists, consult Trezor Support.
Note: Trezor Bridge does not store keys or seed data; it only forwards signed messages between your device and the applications that request them.